- 专利标题: Method of manufacturing negative electrode for secondary battery
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申请号: US17292236申请日: 2020-01-30
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公开(公告)号: US12021217B2公开(公告)日: 2024-06-25
- 发明人: Oh Byong Chae , Sang Wook Woo , Ye Ri Kim
- 申请人: LG ENERGY SOLUTION, LTD.
- 申请人地址: KR Seoul
- 专利权人: LG ENERGY SOLUTION, LTD.
- 当前专利权人: LG ENERGY SOLUTION, LTD.
- 当前专利权人地址: KR Seoul
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: KR 20190013407 2019.02.01
- 国际申请: PCT/KR2020/001440 2020.01.30
- 国际公布: WO2020/159263A 2020.08.06
- 进入国家日期: 2021-05-07
- 主分类号: H01M4/04
- IPC分类号: H01M4/04 ; H01M4/02 ; H01M4/38 ; H01M4/583
摘要:
A method of manufacturing a negative electrode for a secondary battery, which includes: forming a negative electrode structure including a negative electrode current collector and a negative electrode active material layer formed on a surface of the negative electrode current collector; providing a pre-lithiation solution in which a lithium metal counter electrode is immersed and immersing the negative electrode structure in the pre-lithiation solution so that the negative electrode structure is spaced apart from the lithium metal counter electrode; and subjecting the negative electrode structure to a pre-lithiation process, which includes an electrochemical charging process and an electrochemical discharging process performed after the electrochemical charging process, wherein a state of charge (SOCp) of the negative electrode structure subjected to the pre-lithiation process is in a range of 5% to 50%.
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